Well bought my c-max three months ago and had my first dead battery this morning. Called the ford line and they sent someone out to jump it. I drove to work which happens to be a ford dealer and they did another update on it. They said the battery is fine so they didn't replace it. I talked to the master certified technician and he said they are seeing more cases of dead batteries. One guy had it happen four times so far. My girlfriend also bought a c-max and she has had a dead battery as well. They replaced her battery stating it was a bad battery. Apparently a software update was just released to prevent this issue. We will see if that's true or not. My daughter also bought a c-max. Hope this doesn't happen to her too. Btw current mpg is 47.7.
